<!DOCTYPE html>
<html>
<head>
  <style>
  div { color:blue; font-size:18px; }
  </style>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
  <div></div>
  <div></div>
  <div></div>
<script>

    $("div").html("<b>Wow!</b> Such excitement...");
    $("div b").append(document.createTextNode("!!!"))
              .css("color", "red");

</script>

</body>
</html>